Heater for incubators and brooders.



PATENTED JULY '7, 1908.

L. N. PORTER. HEATER FOR INOUBATORS AND BROODERS.

APPLICATION FILED JULY 10, 1907.

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No; 892,619. PATENTED JULY 7, 1908.

L. N. PORTER.

HEATER FOR INOUBATORS AND BROODERS.

APPLICATION mum JULY16,1907.

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lamp or the heat from the heater, directing 'mounted on legs or supports S, and L is the oniran srarns Parana. oriucn LOUIS N. PORTER, OF PONOA, NEB RASKA.

HEATER FOR INCUBA'IORS AND BBOODERS.

I Application filed July 10, 1

T 0 all whom it may concern:

Be it known that I, LOUIS N. PORTER, a citizen ofthe United States, and resident of Ponca, Dixon county, State of Nebraska, have invented certain new and useful Imrovements in Heaters for Incubators and roodcrs; and my preferred manner of carrying out the invention is set forth in the fol-' lowing full, clear, and exact description, terminating with a claim particularly specifying This invention relates to the care of live stock, and more especially to that class of devices thereunder l-ZI10\VI1 ttS incubators; and the object of the same is-to produce an improved heater for incubators or brooders having a hinged or ren'iovable cover. wherein the lines shall be so arranged as to radiate the heat from a common center above the heater to the corners of the body or casing, the better to serve the objects in view.

To this end the invention consists in a central location for the heater (herein shown as a lamp), and the employment of a cover (herein shown as hinged) beneath which the branch flues are arranged, with a hood for receiving the products of combustion from the it into said flues, causing it to flow radially outward to the corners of the cas1ng, and permitting it to escape into the an at those The invention also consists in details of construction providing an egg tray of improved shape, and improved means for equalizing the heat which is flashed down upon it and that which circulates through and around it.

The following specification describes the present embodiment of my invention, reference being had to the accompanying drawings, in whicl Figure 1 is a perspective view of an incubator with my improvements attached. Fig. 2 is a vertical sectional view of the same with the hinged cover raised. Fig. 3 is a section on a diagonal line through the casing as shown in Fig. 1. Fig. 4 is a perspective view of a brooder with my improvements attached, partly broken away.

Referring to the drawings the letter B designates the body of the incubator or brooder heater here shown as a lamp supported by sa d supports beneath the body with its ch mney extending upward into the latter as Specification of Letters Patent.

Patented July 7, 1908.

907. Serial No. 383,082.

shown. Thefegg tray E is supported at its edges on cleats b within the dished or inclined slightly toward its center where it surrounds the heater, and said center may be additionally supported by a ring Z or other device which fits upon said heater. I find a slightly conical or slightly dished egg tray useful in an incubator of this type where the products of combustion pass upward through its center and are hottest beneath the center of the cover. By preference I also employ a, diaphragm D surrounding said heater, slightly above the center of the egg tray and havin perhaps a diameter of four or ive inches re atively to an egg tray about two feet square. As shown this diaphragm is of double thickness with an air space d between its two layers which latter may be of suitable material such as asbestos stifl'ened with wire netting. C isithe cover which in the present case is hinged as at H to one edge of the body, although it could be removable entire without departing from the idea in view. By preference this cover has glass panels G within a suitable framework, permittin inspection of the interior, and possionly and is bly it has a central transverse strip a as of wood or cross strips if the body be large. I might here add that practically the same construction thus far described is used for the brooder as shown in Fig. 4, (excepting the egg tray) and there may be a run-way or exercising chamber B for the little chicks communicating with the body B as shown. Otherwise substantially the heating system described below could be employed in a brooder as well as in an incubator.

Coming "now more articularly to the present invention, the lamp chimney L or an extension therefrom forming the main flue extends upward through the bottom of the body B and communicates with the interior of a (lOUblU-WtlllOCl hood 1* from 'which branch flues Fmadiato outward and around the flue L, carry it upward around the same and warm it in its passage, and

direct it between the two concentric walls of the hood F; and from the latter radiate what I will call warm air branch flues W which 'loosely surround the main branch flues F and extendoutward for a short distance as shown. Next outside the warm air passage-is another tube I surrounding that lettered W and spaced from it, and this tube rests upon the bottom of the body and extends upward to or nearly to the egg tray E. Near its lower end it is perforated as at i so that 'it takes in the cooler air at the bottom of the incubating chamber, passes it up outside the warm airAfiue, and delivers it at a slightly higher tern erature beneath the. egg tray. This I ca led the interior passage of flue because'it does not take its inlet from the exterior of the bodynor deliver its outlet thereto.

The sizes and proportions of parts are immaterial excepting about as herein stated and about as shown in the drawings. It will be clear that direct heat will pass up the main flue L and out the-main branches F; cool air will pass up through the flue W and be warmed, and pass out the warm air branches W-into the interior of the body; the atmosphere therein will be circulated by the interior passage I these compound concentric fiues around the main ue L will below the e g tray, and the diaphragm will prevent t 1e heat in the hood F from unduly affecting the eggs near the center of the tray; and finally the dished shape ofjthe latter will equalize the heat flashed down upon it from the upper portion of the interior.

I have ilustrated and described no therprevent excessive heatin mometer or thermostat, and. no egg turner or moistener, because these details form no part of the present invention.

I have illustrated in Fig. 1 an additional diaphragm D"carried by'the cover at apoint immediately'above the hood and surrounding fines and where there is the greatest heat, the purpose of this diaphragm being to prevent breaking the glass it employed in the cover.

What is claimed as new is:

1. In an incubator, the combination with the body having outlets at its corners, a main flue directed upward thereinto, a hood with which it communicates; and main branches radiating from the hood to said outlets; of an egg tray suppor ed in the body and surrounding said flue, and a diaphragm surrounding the heater at a point between the branches and egg tray. I

2. In an incubator, the combination with thebody having outlets at its corners, a

main flue" directed upward thereinto, a,hood v W itnesses:

withwhich it communicates, and main branches'radiatiug from the hood to' said Y outlets; of'a'n egg tray supported in: the

slightly to said .ported in the seams body and surrounding saidjliueyazrd aldia phragm between the hood an. egg tray sait diaphragm being smaller than the interior of the body and composed of two norkcon-- ducting sheets with a narrow space between them;

3. In an incubator, the combination with the body having outlets at its corners, a main flue directed upward thereinto, a hood with which it communicates, and main branches radiating from the hood to said outlets; of an eg tray supported in the body and surroun ing said fine, a tube surrounding said flue below the egg tray and producing an air .passage,1and a diaphragm surrounding the heater at a point between the branches and egg tray.

4. In an incubator, the combination with the body having outlets at its corners, a main flue directed upward theremto, a hood with which it communicates, and main branches radiating from the hood to said outlets; of an egg tray supported in the body and surrounding said flue, said egg tray be ing dished or depressed at its center, and a diaphragm surrounding the heater at i a point between the branches and egg tray,

5. In an incubator, the combination with the body having outlets at its corners, a main flue directed upward thereinto, a hood with which it communicates, and main branches radiating from the hood and rising outlets; of an egg tray supbody and surrounding said iiue, said egg tray being dished or depressed at its center.

6. In an incubator, the combination with the body having outlets at its corners, a

main fluedirected upward thereinto, a hood with which it communicates, and main said ue, said egg tray being dished or depressed at 7 its center, and a diaphragmsur ounding the heater at a point bet-ween the branches and egg tray.

7. In anincubator or brooder, the combi- I nation withthe body having outlets at its corners,-- and a hinged cover therefor containin lass anels of a main flue directed g g Q upward into tne body, a centrally disposed.

hood with which it con1municetes,;'main branches radiating from the hood tc said outlets and standing near said cover, and a diaphragm supported by the latter between it and said branches.

In testimony whereof I have hereunto sub-- scribed my signature this the 3rd day oi July, A. I). 1907.

' LOUIS N. PGEIF? WiLL F. MrxnsnLL, C. Honrrsrnn. 

